Electronic keyboard musical instrument



FIG. 1 is a top, front and right side perspective view of an electronic keyboard musical instrument showing my new design;

FIG. 2 is a bottom, rear and left side perspective view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof; and

FIG. 6 is a top, front and right side perspective view thereof, illustrated with the cover in the closed position. 

The ornamental design for electronic keyboard musical instrument, as shown and described. 